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2 years ago

Miguel withdrew $20 per week from his bank account for 4 weeks. Which expression shows the change in his account balance?

Mathematics

1 answer:

kozerog [31]2 years ago

5 0

Answer:

Step-by-step explanation:

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Divide (- 6 + i)/(1 - 2i) =

Kaylis [27]

$~~~\dfrac{(-6 +i)}{(1- 2i)}\\\\\\=\dfrac{(-6+i)(1+2i)}{(1-2i)(1+2i)}\\\\\\=\dfrac{-6-12i+i+2i^2}{1-(2i)^2}\\\\\\=\dfrac{-6-11i-2}{1+4}~~~~~~~~~~~~~;[i^2=-1]\\\\\\=\dfrac{-8-11i}{5}\\\\\\=-\dfrac 85-\dfrac{11}{5}i$

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padilas [110]

0.00170358
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3 years ago

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Please help me solve this, and show your work

zlopas [31]

$6r+5=11r\ \ \ \ |\text{subtract 6r from both sides}\\\\5=5r\ \ \ \ |\text{divide both sides by 5}\\\\\boxed{r=1}\\-------------------------\\\dfrac{2x-4}{2}=6x+3\\\\\dfrac{2x}{2}-\dfrac{4}{2}=6x+3\\\\x-2=6x+3\ \ \ \ \ |\text{add 2 to both sides}\\\\x=6x+5\ \ \ \ |\text{subtract 6x from both sides}\\\\-5x=5\ \ \ \ \ |\text{divide both sides by -5}\\\\\boxed{x=-1}$

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3 years ago

Ax +by=c solve for y

hichkok12 [17]

Answer:

y = c/b - (A x)/b

Step-by-step explanation:

Solve for y:

A x + b y = c

Hint: | Isolate terms with y to the left hand side.

Subtract A x from both sides:

b y = c - A x

Hint: | Solve for y.

Divide both sides by b:

Answer: y = c/b - (A x)/b

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2 years ago

3<br>Evaluate (1/2)<br><br><br>plzzz helpppp meeee

larisa [96]

Answer:

0.5

Step-by-step explanation:

1/2 is one half, and if you divide 1 by 2 using long division you get 0.5

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